Lock-nut.



No. 753,088. PATENTED FEB. 21, 1905. P. P. VAUGHAN. LOCK NUT.

I by

e/qlfovge ys UNITED. STATES Patented February 21, 1905.

PATENT OFFICE.

LOCK-NUT.

SPECIFICATION forming part of Letters Patent No. 783,088, dated February 21 1905.

Apnlioation filed March 5,1904. Serial No. 196,683.

1'!) all whom. it may concern:

'Be it known that I, FREDERICK PHILEMON VAUGHAN, a citizen of 'the United States. residing atPerry, in the county of Noble, Oklahoma Territory, have invented a new and useful Lock-Nut, of which the following is a specification.

This invention relates to nuts and'bolts having attachments for preventing the nuts rotating backwardly on the bolts, and has for its object to produce an improved device of this character simple in construction, inexpensive to manufacture, easily applied and operated, and which will effectually prevent nuts becoming loosened upon the bolts, but which may at the same time be quickly released when required without injury to the nut or bolt or the locking attachments connected therewith.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consistsin certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specifiation, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form ofthe embodimentflof the invention capable of carrying the'same into practical. operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages, and the rightis therefore reserved of making all the changes and modifications whichzfairly fall within the scope of the invention and the claim made therefor.

In the drawings thus employed, Figure 1 is a perspective view of a bolt and nut with the improvement applied. Fig. 2- is a transverse section. Fig. 3 is a longitudinalsection with the wrench attached inoperative position. Fig. 4 is an end view of a modified form of bolt.

The improvements may be applied to anyof the various forms and sizes of bolts and nuts manufactured,'but for the purpose of illustration is shown applied to an ordinary hexagonal nut 10 and itsbolt 11.

The nut is'provided with a longitudinal peripheral recess 12, intersecting the front and rear faces of the nut, and also provided with a circumferential channel or groove 13, transsecting the recess, and with an aperture 14 extending inwardly radially of the nut and forming a continuation o the groove at one end. The recess 12 is deeper than the channel or groove .13 for a purpose that will be' hereinafter described. Fitting the groove isa spring -rod 15, secured by one end 16 in one end of the groove and with the other end 17 bent for passage through the aperture'l t and extending into the nut-cavity.

The bolt is provided with one ormorelongitudinal grooves 18 transversely of the threads, with which the terminal of the inwardly-bent end 17 of the rod 15 engages, as shown in Fig. 2. By this means it will be obvious that when a nut thus equipped is connected to the bolt and the portion 17 permitted to spring into the groove the; nut will be locked from turning thereon.-

lf-the groove be formed with both sides radially of the bolt, as in Fig. 4, the nut cannot. be rotatedjn either direction; but if one 'side of the groove be tangential of the bolt, as'in Figs. 1 and 2, the nut can be rotated forwardly, but will be held from backward rotation, as

will be obvious.

when the wrench is placed upon the nut the stud 19 will enter the recess 12 and expand the spring-rodand release the nut and hold it released and free to be rotated in the ordinary and manner so long as the wrench is in position upon the nut, and when the Wrench is removed the stud will he disoonueeted with it and the springwod released to again he engaged with the groove 18.

it will now he understood that the recess 12 is deeper than the grooveor channel 13 in order thata space may be preserved beneath the free end portion of the spring it) for the reception of the stud l 9 of the wrench, whereby said stud may readil enter beneath the spring for Withdrawing the dog 1'? out of the eroove of the bolt. 12 intersect nut there of the stud l9 tl'irough the recess, tel-s not which face is the outer nut, as the stud 19 may enter either 0P9; end of the recess.

if the tangentially--sided groo plOyed, the nut can he applied by 2 or" Wrench end 32 in the grooves l",hL o

\v nent such l2 in the rear oi avii released only as the stud 19, in the rod. The n b attached, is tli uselnl and convenient adjune to the improved device and materially iaeintates the operation.

The grooves 18 channel 1 3., aperture ll,-

pecially when its great advantages are considered.

The improved device can be applied to all sizes and forms of nuts and bolts, to those emnloyed for various purposes, and can be applied with equal facility to nuts and bolts already mamifactured or to the same in the course of manufacture.

Having thus described the invention. What is claimed is A nuthaving an outer marginal.groove located between the front and rear faces thereof and terminating at one end in a substantially radial socketheving a closed inner end and at its opposite end in a. substantially radial opening intersecting the holt-opeuing of the nut with a transverse recess intersecting the groove adjacent the radial opening and also intersecting the front and rear faces of the nut, and a bowed spring seated in the groove with one end bent inwardly and secured Within the socket and. its opposite end bent inwardly to form a dog working in the radial opening, the transverse-racess being deeper than the groove to form an open-ended passage beneath the spring for the reception of a releasing device inserted 'l'rnin either end of the recess.

in testimony that I claim the foregoing as my own I have hereto :1 (fixed m y signature in the presenceof two witnesses.

FREDEl'llCK llllLEMOX YAL'GHAN.

llitness'es:

NEWTON L. FALLs. H. A. Jonxsou 

